کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10419149 | 903470 | 2005 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A moving dislocation in a magneto-electro-elastic solid
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی مکانیک
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: A moving dislocation in a magneto-electro-elastic solid A moving dislocation in a magneto-electro-elastic solid](/preview/png/10419149.png)
چکیده انگلیسی
This work considers the generalized plane problem of a moving dislocation in an anisotropic elastic medium with piezoelectric, piezomagnetic and magnetoelectric effects. The closed-form expressions for the elastic, electric and magnetic fields are obtained using the extended Stroh formalism for steady-state motion. The radial components, Er and Hr, of the electric and magnetic fields as well as the hoop components, Dθ and Bθ, of electric displacement and magnetic flux density are found to be independent of θ in a polar coordinate system. This interesting phenomenon is proven to be is a consequence of the electric and magnetic fields, electric displacement and magnetic flux density that exhibit the singularity râ1 near the dislocation core. As an illustrative example, the more explicit results for a moving dislocation in a transversely isotropic magneto-electro-elastic medium are provided and the behavior of the coupled fields is analyzed in detail.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Mechanics Research Communications - Volume 32, Issue 5, SeptemberâOctober 2005, Pages 504-513
Journal: Mechanics Research Communications - Volume 32, Issue 5, SeptemberâOctober 2005, Pages 504-513
نویسندگان
J.X. Liu, A.K. Soh, D.N. Fang,